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85654 (1998 QU17)
Classification: Main-belt Asteroid          SPK-ID: 2085654
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1611624455058112 4.7772e-08  
a 3.196195260857205 2.617e-08 au
q 2.681088616303374 1.5962e-07 au
i 5.566070633675362 4.6537e-06 deg
node 295.3527934154254 5.1918e-05 deg
peri 62.61482834545463 5.3986e-05 deg
M 274.6186746898209 1.7932e-05 deg
tp 2459495.504073301599
(2021-Oct-08.00407330)
0.00010813 TDB
period 2087.124622875003
5.71
2.5633e-05
7.018e-08
d
yr
n .1724861065095873 2.1184e-09 deg/d
Q 3.711301905411036 3.0387e-08 au
  Orbit Determination Parameters
   # obs. used (total)      672  
   data-arc span      9313 days (25.50 yr)  
   first obs. used      1993-11-08  
   last obs. used      2019-05-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55277  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:55:49  

Additional Information
 Earth MOID = 1.68283 au 
 Jupiter MOID = 1.78331 au 
 T_jup = 3.168 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.5   n/a MPO436374  
diameter diameter 7.544 km 0.095 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

85654 (1998 QU17)          Discovered 1998-Aug-17 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1998 QU17 = 1993 VZ5 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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